US 950

All names: SDSS J094658.80+471024.4, SDSS J094658.77+471024.2, HS 0943+4724, PSO J094658.769+471024.224, Gaia DR2 821762758533563264, SDSS J094658.77+471024.28

Parameter Unit MWDD H Pan-STARRS DR1 Gaia DR2 Kepler et al. 2015 SDSS DR10 Simbad
Right ascension 09 46 58.77 (0.09) 09 46 58.80 09 46 58.80
Declination 47 10 24.25 (0.09) 47 10 24.49 47 10 24.49
Spectral type DA DA DA
Effective temperature [K] 18426.0 19609.0 (119)
log(g) [cgs] 7.95 7.98 (0.02)
Mass [M☉] 0.59 0.611 (0.01)
log(Luminosity) [L☉]
Cooling age [Gyr] 0.0861
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H)
log(P/H)
log(S/H)
log(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Ni/H)
Parallax [mas] 3.87 (0.2)
Distance [pc] 258.14 (10)
Composition H
Proper motion (right ascension) [mas/yr] -27.1508758378 (0.2) -28.0
Proper motion (declination) [mas/yr] -20.6925469221 (0.2) -24.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 17.60
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 17.84 (0.02) 17.83 (0.01) 17.83
g magnitude 17.76 (0.02) 17.74 (0.005) 17.74
r magnitude 18.09 (0.03) 18.10 (0.007) 18.10
i magnitude 18.37 (0.02) 18.38 (0.01) 18.38
z magnitude 18.69 (0.04) 18.69 (0.04) 18.69
G magnitude 17.95
BP magnitude 17.84
RP magnitude 18.13
Pan g magnitude 17.76 (0.009)
Pan r magnitude 18.09 (0.004)
Pan i magnitude 18.40 (0.004)
Pan z magnitude 18.68 (0.009)
Pan y magnitude 18.80 (0.03)

* Constant surface field

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The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour at Université de Montréal. Please send database updates, corrections, suggestions or bug reports to dufourpa@astro.umontreal.ca.